Fair Value, Assets Measured on Recurring Basis |
Assets and liabilities measured at fair value on a recurring basis at December 31, 2013, summarized by measurement input category, were as follows: | | | | | | | | | | | | | | | | | | Total | | Level 1 | | Level 2 | | Level 3 | | (in thousands) | Assets | | | | | | | | Cash, including short-term deposits(1) | $ | 72,602 |
| | $ | 72,602 |
| | $ | — |
| | $ | — |
| Mutual funds(2) | 20,783 |
| | 20,783 |
| | — |
| | — |
| United States government securities(2) | 50,379 |
| | 50,379 |
| | — |
| | — |
| Corporate securities(2) | 74,559 |
| | 68,624 |
| | — |
| | 5,935 |
| Commercial paper(3) | 1,799 |
| | — |
| | 1,799 |
| | — |
| Corporate obligations(2) | 31,965 |
| | — |
| | 14,535 |
| | 17,430 |
| Investments in certain funds(4) | 844 |
| | — |
| | — |
| | 844 |
| Total | $ | 252,931 |
| | $ | 212,388 |
| | $ | 16,334 |
| | $ | 24,209 |
|
| | (1) | Reported within "Cash and cash equivalents." |
| | (2) | Reported within “Marketable securities.” |
| | (3) | $1.0 million reported within "Cash and cash equivalents" and $0.8 million reported within "Marketable securities." |
| | (4) | Reported within "Other investments." |
Assets and liabilities measured at fair value on a recurring basis at September 30, 2014, summarized by measurement input category, were as follows: | | | | | | | | | | | | | | | | | | Total | | Level 1 | | Level 2 | | Level 3 | | (in thousands) | Assets | | | | | | | | Cash, including short-term deposits(1) | $ | 46,677 |
| | $ | 46,677 |
| | $ | — |
| | $ | — |
| Restricted cash | 20,264 |
| | 20,264 |
| | — |
| | — |
| Mutual funds(2) | 20,759 |
| | 20,759 |
| | — |
| | — |
| Corporate securities(2) | 116,796 |
| | 100,409 |
| | — |
| | 16,387 |
| Corporate obligations(2) | 32,080 |
| | — |
| | 12,858 |
| | 19,222 |
| Investments in equity-method investees | 26,871 |
| | 26,871 |
| | — |
| | — |
| Investments in certain funds(3) | 540 |
| | — |
| | — |
| | 540 |
| Total assets | $ | 263,987 |
| | $ | 214,980 |
| | $ | 12,858 |
| | $ | 36,149 |
| | | | | | | | | Liabilities | | | | | | | | Financial instrument obligations | $ | (20,264 | ) | | $ | (20,264 | ) | | $ | — |
| | $ | — |
|
| | (1) | Reported within "Cash and cash equivalents" |
| | (2) | Reported within “Marketable securities” |
| | (3) | Reported within "Other investments" |
Assets and liabilities measured at fair value on a recurring basis at December 31, 2013, summarized by measurement input category, were as follows: | | | | | | | | | | | | | | | | | | Total | | Level 1 | | Level 2 | | Level 3 | | (in thousands) | Assets | | | | | | | | Cash, including short-term deposits(1) | $ | 72,602 |
| | $ | 72,602 |
| | $ | — |
| | $ | — |
| Mutual funds(2) | 20,783 |
| | 20,783 |
| | — |
| | — |
| United States government securities(2) | 50,379 |
| | 50,379 |
| | — |
| | — |
| Corporate securities(2) | 74,559 |
| | 68,624 |
| | — |
| | 5,935 |
| Commercial paper(3) | 1,799 |
| | — |
| | 1,799 |
| | — |
| Corporate obligations(2) | 31,965 |
| | — |
| | 14,535 |
| | 17,430 |
| Investments in certain funds(4) | 844 |
| | — |
| | — |
| | 844 |
| Total | $ | 252,931 |
| | $ | 212,388 |
| | $ | 16,334 |
| | $ | 24,209 |
|
| | (1) | Reported within "Cash and cash equivalents." |
| | (2) | Reported within “Marketable securities.” |
| | (3) | $1.0 million reported within "Cash and cash equivalents" and $0.8 million reported within "Marketable securities." |
| | (4) | Reported within "Other investments." |
|
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation |
Changes in the fair value of assets valued using Level 3 measurement inputs during the three and nine months ended September 30, 2014 and 2013, were as follows: | | | | | | | | | | | | | | | | | | Three Months Ended September 30, | | Nine Months Ended September 30, | | 2014 | | 2013 | | 2014 | | 2013 | | (in thousands) | Balance, beginning of period | $ | 32,346 |
| | $ | 20,952 |
| | $ | 24,209 |
| | $ | 2,804 |
| Purchases | 2,756 |
| | — |
| | 13,294 |
| | 39,332 |
| Sales | (137 | ) | | (32 | ) | | (4,869 | ) | | (22,958 | ) | Realized gains (losses) on sale | — |
| | — |
| | (129 | ) | | 1,556 |
| Unrealized gains (losses) | 1,184 |
| | (2,210 | ) | | 3,644 |
| | (2,024 | ) | Balance, end of period | $ | 36,149 |
| | $ | 18,710 |
| | $ | 36,149 |
| | $ | 18,710 |
|
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